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Chemistry

Chemistry
Water gas is the combination of

CO and H2
CO2and H2
CO and H2O
CO2 and CO

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Chemistry
The chief source for the production of nitrogeneous fertilizers is :

Nitrogen
Nitric acid
Nitrogen dioxide
Ammonia

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Chemistry
Where does the oxygen that keeps us alive come from?

Water
Carbonates absorbed from soil
Carbon dioxide
Oxides of minerals

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Chemistry
Supersonic jet causes pollution by thinning of

O 2 layer
CO2 layer
O3 layer
SO2 layer

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Chemistry
Cyanide poisoning causes death in seconds because

It causes cardiac arrest
It breaks the electron transport chain
It denatures enzymes of the heart/muscle
It causes Lysis of red blood cells

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Chemistry
The gas used for artificial fruit ripening of green fruit is

Acetylene
Ethylene
Methane
Ethane

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MORE MCQ ON Chemistry

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